How do you work out the formula of an ionic compound?

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m

The law of states that traits are passed from parents to offspring independently of one another.. true or false

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.